Organic boxes - how much stuff do you get?

[KathyMCMLXXII]

A q for all the organic box fans out there....
We are thinking of trying an organic veg scheme (well, I am - dh is gritting his teeth and silently weeping at the thought of all that kale and celeriac). I have researched it online and while I have got a pretty good idea of the variety that goes into each box, it seems that the one bit of info they don't give you (presumably because it's so variable) is how much of each vegetable they send you.
Without this info it's very hard to work out how good or bad value it's going to be, whether you can get through the veg in a week, etc.

The two I have found that deliver in our area are Farmaround North and Organicpantry.co.uk - thinking of going with the former as that looks fairly well organised. Any experiences?

Thanks!

Kathy - I am impressed by the comparison

Well, of course, if you just buy the stuff from Sainsbury's you're getting the advantages of choice, which you don't get with a box. It ought IMO to be quite feasible for a box scheme to be cheaper as it must be so much easier for them to plan and not have the wastage.
No wonder supermarkets are planning to go into box schemes as Prettycandles mentions - yes I am also very interested to see what happens when they get started, PC. I would have thought a lot of people on box schemes would be doing it partly because they're not happy with supermarkets in general, rather than because they absolutely have to have organic food.... on the other hand supermarkets will probably be steeply undercutting the smaller companies in price.

Think I'd still rather have the current schemes than the supermarket ones. The one thing I find with my current scheme is the veg always seems really fresh.